Secure Grip & Never Fall Off: The phone mount for car is armed with an innovative hollow silicone rubber. It can hold your phone more tightly than other silicone arm clips, you can rollover your phone at will, it will not move at all,Firmly Clip: The car phone holder mount has an adjustable handle lock clasp, which can easily and firmly fix the vent mounting clip to the car vent. NOTE: THIS PHONE MOUNT ONLY CAN HOOK ON HORIZONTAL AIR VENT BUT IT CANNOT BE USED ON VERTICAL OR ROUND AIR VENT,Broad Applicability: The ultra-wide adjustable arm design will make the car phone holder suitable for all mobile phones (4.0-7.2 inches), thin cases and other devices (width between 2.55-4.11 inches), such as GPS devices,Easy to Install: Clamp the car vent phone mount on the vent and rotate the handle lock ring. The quick release button and adjustable clamp arm make it very easy to sheathe and remove your phone just with one hand,Adjustable as your wish: With the 360° rotating and rotating ball joint, the iphone holder for car can be easily adjusted to the best viewing angle. Whenever and wherever, the phone holder for car vent can secure your driving safety